/* 정보공유 게시판 전용 CSS - 기존 app.css 기반 (반응형 수정) */

/* =================================
   정보공유 게시판 컨테이너
   ================================= */

.board-container {
    padding: var(--spacing-xl, 2rem) 0;
    min-height: 100vh;
    background: var(--bg-lighter, #f7fafc);
}

/* =================================
   게시판 헤더
   ================================= */

.board-header {
    background: var(--bg-white, #ffffff);
    border: 1px solid var(--border-light, #e2e8f0);
    border-radius: var(--radius-lg, 12px);
    padding: var(--spacing-xl, 2rem);
    margin-bottom: var(--spacing-xl, 2rem);
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.1));
}

.board-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-md, 1rem);
    margin-bottom: var(--spacing-lg, 1.5rem);
}

.board-title h1 {
    font-size: var(--font-size-3xl, 2rem);
    font-weight: 700;
    color: var(--text-primary, #1a1a1a);
    margin: 0;
    letter-spacing: -0.025em;
}

.board-title .icon {
    font-size: var(--font-size-2xl, 1.5rem);
    color: var(--primary-green, #00c896);
    background: rgba(0, 200, 150, 0.1);
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.board-description {
    color: var(--text-secondary, #6b7280);
    font-size: var(--font-size-base, 1rem);
    line-height: 1.6;
    margin: 0;
}

/* =================================
   게시판 컨트롤
   ================================= */

.board-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl, 2rem);
    gap: var(--spacing-lg, 1.5rem);
    flex-wrap: wrap;
}

.search-filters {
    display: flex;
    gap: var(--spacing-md, 1rem);
    flex: 1;
    min-width: 300px;
}

.search-group {
    display: flex;
    gap: var(--spacing-sm, 0.5rem);
    flex: 1;
}

.search-input {
    min-width: 250px;
    flex: 1;
}

.board-actions {
    display: flex;
    gap: var(--spacing-sm, 0.5rem);
}

/* =================================
   게시글 목록
   ================================= */

.board-list {
    background: var(--bg-white, #ffffff);
    border: 1px solid var(--border-light, #e2e8f0);
    border-radius: var(--radius-lg, 12px);
    overflow: hidden;
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.1));
}

.list-header {
    background: var(--bg-lighter, #f7fafc);
    padding: var(--spacing-lg, 1.5rem) var(--spacing-xl, 2rem);
    border-bottom: 1px solid var(--border-light, #e2e8f0);
    display: grid;
    grid-template-columns: 1fr 120px 80px 80px 100px;
    gap: var(--spacing-md, 1rem);
    font-weight: 600;
    color: var(--text-secondary, #6b7280);
    font-size: var(--font-size-sm, 0.875rem);
}

.list-item {
    padding: var(--spacing-lg, 1.5rem) var(--spacing-xl, 2rem);
    border-bottom: 1px solid var(--border-light, #e2e8f0);
    display: grid;
    grid-template-columns: 1fr 120px 80px 80px 100px;
    gap: var(--spacing-md, 1rem);
    align-items: flex-start;
    transition: var(--transition-fast, all 0.15s ease);
    cursor: pointer;
}

.list-item:hover {
    background: var(--bg-hover, rgba(0, 0, 0, 0.02));
}

.list-item:last-child {
    border-bottom: none;
}

/* =================================
   게시글 제목 및 메타 정보
   ================================= */

.post-title {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs, 0.25rem);
}

.post-title a {
    color: var(--text-primary, #1a1a1a);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-base, 1rem);
    line-height: 1.5;
    transition: var(--transition-fast, all 0.15s ease);
}

.post-title a:hover {
    color: var(--primary-green, #00c896);
}

.post-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm, 0.5rem);
    font-size: var(--font-size-xs, 0.75rem);
    color: var(--text-muted, #9ca3af);
    margin-top: var(--spacing-xs, 0.25rem);
}

.author {
    color: var(--text-secondary, #6b7280);
    font-weight: 500;
}

.author::after {
    content: "·";
    margin: 0 var(--spacing-xs, 0.25rem);
    color: var(--text-muted, #9ca3af);
}

.date {
    color: var(--text-muted, #9ca3af);
    font-size: var(--font-size-sm, 0.875rem);
    font-family: 'Inter', system-ui, sans-serif;
    letter-spacing: 0.025em;
}

.views,
.likes {
    text-align: center;
    color: var(--text-muted, #9ca3af);
    font-size: var(--font-size-sm, 0.875rem);
    font-weight: 500;
}

/* =================================
   카테고리 태그
   ================================= */

.category-tag {
    background: var(--primary-green, #00c896);
    color: white;
    padding: var(--spacing-xs, 0.25rem) var(--spacing-sm, 0.5rem);
    border-radius: var(--radius-sm, 6px);
    font-size: var(--font-size-xs, 0.75rem);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* =================================
   공지사항 스타일
   ================================= */

.notice-item {
    background: linear-gradient(135deg, rgba(0, 200, 150, 0.05) 0%, rgba(0, 212, 170, 0.02) 100%);
    border-left: 4px solid var(--primary-green, #00c896);
    position: relative;
}

.notice-item:hover {
    background: linear-gradient(135deg, rgba(0, 200, 150, 0.08) 0%, rgba(0, 212, 170, 0.05) 100%);
}

.notice-item .post-title a {
    font-weight: 600;
}

.notice-icon {
    color: var(--accent-orange, #ff6b35);
    margin-right: var(--spacing-xs, 0.25rem);
    font-size: var(--font-size-sm, 0.875rem);
}

.notice-tag {
    background: var(--accent-orange, #ff6b35);
    color: white;
    padding: 2px 8px;
    border-radius: var(--radius-sm, 6px);
    font-size: 0.75rem;
    font-weight: 600;
    margin-right: var(--spacing-xs, 0.25rem);
    display: inline-flex;
    align-items: center;
}

/* =================================
   폼 요소 스타일
   ================================= */

.form-control {
    display: block;
    width: 100%;
    padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 1rem);
    background: var(--bg-input, #ffffff);
    border: 1px solid var(--border-input, #e2e8f0);
    border-radius: var(--radius-sm, 6px);
    color: var(--text-primary, #1a1a1a);
    font-size: var(--font-size-sm, 0.875rem);
    line-height: 1.5;
    transition: all var(--transition-fast, 0.15s ease);
    min-height: 38px;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-green, #00c896);
    box-shadow: 0 0 0 3px rgba(0, 200, 150, 0.1);
}

.form-control::placeholder {
    color: var(--text-muted, #9ca3af);
}

.form-select {
    display: block;
    width: 100%;
    padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 1rem);
    background: var(--bg-input, #ffffff);
    border: 1px solid var(--border-input, #e2e8f0);
    border-radius: var(--radius-sm, 6px);
    color: var(--text-primary, #1a1a1a);
    font-size: var(--font-size-sm, 0.875rem);
    line-height: 1.5;
    transition: all var(--transition-fast, 0.15s ease);
    min-height: 38px;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right var(--spacing-sm, 0.5rem) center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: var(--spacing-2xl, 2.5rem);
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

.form-select:focus {
    outline: none;
    border-color: var(--primary-green, #00c896);
    box-shadow: 0 0 0 3px rgba(0, 200, 150, 0.1);
}

/* =================================
   페이지네이션
   ================================= */

.pagination-container {
    margin-top: var(--spacing-xl, 2rem);
    display: flex;
    justify-content: center;
}

.pagination {
    display: flex;
    gap: var(--spacing-xs, 0.25rem);
    align-items: center;
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-light, #e2e8f0);
    border-radius: var(--radius-sm, 6px);
    color: var(--text-secondary, #6b7280);
    text-decoration: none;
    font-size: var(--font-size-sm, 0.875rem);
    font-weight: 500;
    transition: var(--transition-fast, all 0.15s ease);
}

.pagination a:hover {
    background: var(--primary-green, #00c896);
    color: white;
    border-color: var(--primary-green, #00c896);
}

.pagination .current {
    background: var(--primary-green, #00c896);
    color: white;
    border-color: var(--primary-green, #00c896);
}

.pagination .disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* =================================
   빈 상태
   ================================= */

.empty-state {
    text-align: center;
    padding: var(--spacing-3xl, 3rem) var(--spacing-xl, 2rem);
    color: var(--text-muted, #9ca3af);
}

.empty-state i {
    font-size: var(--font-size-3xl, 2rem);
    margin-bottom: var(--spacing-lg, 1.5rem);
    color: var(--text-light, #d1d5db);
}

/* =================================
   반응형 디자인 수정
   ================================= */

@media (max-width: 1024px) {
    .list-header,
    .list-item {
        grid-template-columns: 1fr 120px 70px 70px 90px;
        gap: var(--spacing-sm, 0.5rem);
    }
    
    .search-group {
        flex-wrap: wrap;
    }
    
    .search-input {
        min-width: 200px;
    }
}

@media (max-width: 768px) {
    /* 컨테이너 패딩 조정 */
    .board-container {
        padding: var(--spacing-lg, 1.5rem) 0;
    }
    
    .board-header,
    .board-list {
        margin-left: var(--spacing-md, 1rem);
        margin-right: var(--spacing-md, 1rem);
        padding: var(--spacing-lg, 1.5rem);
    }
    
    /* 헤더 반응형 */
    .board-title h1 {
        font-size: var(--font-size-2xl, 1.5rem);
    }
    
    .board-title .icon {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-xl, 1.25rem);
    }
    
    /* 컨트롤 반응형 */
    .board-controls {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-md, 1rem);
        margin-left: var(--spacing-md, 1rem);
        margin-right: var(--spacing-md, 1rem);
    }
    
    .search-filters {
        min-width: auto;
    }
    
    .search-group {
        flex-direction: column;
        gap: var(--spacing-sm, 0.5rem);
    }
    
    .search-input {
        min-width: auto;
        width: 100%;
    }
    
    /* 리스트 헤더 숨김 */
    .list-header {
        display: none;
    }
    
    /* 리스트 아이템 모바일 레이아웃 */
    .list-item {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm, 0.5rem);
        padding: var(--spacing-md, 1rem);
        align-items: stretch;
    }
    
    /* 모바일에서 요소 순서 조정 */
    .post-title {
        order: 1;
        margin-bottom: var(--spacing-sm, 0.5rem);
    }
    
    .post-meta {
        order: 2;
        justify-content: space-between;
        margin-top: 0;
        margin-bottom: var(--spacing-xs, 0.25rem);
    }
    
    /* 카테고리, 조회수, 추천, 날짜를 한 줄에 배치 */
    .list-item .category-tag,
    .list-item .views,
    .list-item .likes,
    .list-item .date {
        order: 3;
        font-size: var(--font-size-xs, 0.75rem);
    }
    
    /* 모바일 메타 정보 컨테이너 */
    .list-item::after {
        content: "";
        order: 3;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: var(--spacing-sm, 0.5rem);
        margin-top: var(--spacing-xs, 0.25rem);
        padding-top: var(--spacing-xs, 0.25rem);
        border-top: 1px solid var(--border-light, #e2e8f0);
    }
    
    .pagination a,
    .pagination span {
        width: 36px;
        height: 36px;
        font-size: var(--font-size-xs, 0.75rem);
    }
}

@media (max-width: 480px) {
    /* 더 작은 화면에서 추가 조정 */
    .board-header,
    .board-list {
        margin-left: var(--spacing-sm, 0.5rem);
        margin-right: var(--spacing-sm, 0.5rem);
        padding: var(--spacing-md, 1rem);
    }
    
    .board-controls {
        margin-left: var(--spacing-sm, 0.5rem);
        margin-right: var(--spacing-sm, 0.5rem);
    }
    
    .board-title {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm, 0.5rem);
    }
    
    .board-title h1 {
        font-size: var(--font-size-xl, 1.25rem);
    }
    
    .list-item {
        padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 1rem);
    }
    
    .pagination {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-xs, 0.25rem);
    }
    
    .pagination a,
    .pagination span {
        width: 32px;
        height: 32px;
        font-size: 0.6875rem;
    }
}

/* =================================
   추가 개선사항
   ================================= */

/* 로딩 상태 */
.loading-state {
    text-align: center;
    padding: var(--spacing-2xl, 2.5rem);
    color: var(--text-muted, #9ca3af);
}

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-light, #e2e8f0);
    border-radius: 50%;
    border-top-color: var(--primary-green, #00c896);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 포커스 개선 */
.form-control:focus,
.form-select:focus,
.pagination a:focus {
    outline: 2px solid var(--primary-green, #00c896);
    outline-offset: 2px;
}

/* 고대비 모드 지원 */
@media (prefers-contrast: high) {
    .board-list,
    .board-header {
        border-width: 2px;
    }
    
    .list-item:hover {
        border: 2px solid var(--primary-green, #00c896);
    }
}

/* 모션 감소 모드 */
@media (prefers-reduced-motion: reduce) {
    .list-item,
    .form-control,
    .form-select,
    .pagination a,
    .loading-spinner {
        transition: none !important;
        animation: none !important;
    }
}